Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Development and production of laboratory scale novel MDF panels from composite and nonwoven mattresses of sisal and wood fibre mixtures (2000)
    Springer
    Holz als Roh- und Werkstoff 58 (2000), S. 324-330 
    Details
    ISSN: 1436-736X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Agave sisalana ) all over the world in terms of production and export. The possibility of mixing sisal and wood fibres to produce novel medium density fibreboard (MDF) is one of a number of new uses for sisal being investigated in order to address this problem. Various lengths of sisal fibres were mixed with wood fibres in ratios of 10:90 and 5:95 sisal to wood fibres to produce composite mattresses, pressed into MDF panels. The nonwoven mattress, which is a network of fibres of different lengths characterised by increased interlocking and presence of more non-horizontal fibres, was formed with a laboratory needleloom machine. Modulus of rupture (MOR), modulus of elasticity (MOE) and internal bond (IB) properties of these novel MDF panels were compared to those of standard MDF panels produced under the same conditions and used as a control. Results obtained showed that sisal fibres can be mixed with wood fibres to produce novel MDF panels with improved physical and mechanical properties. The amount of sisal had a significant effect on panel properties but the sisal length showed little effect. Generally, nonwoven MDF panels produced from mixtures of sisal and wood fibres showed better dimensional and mechanical properties compared with composite MDF panels from mixtures of sisal and wood fibres mattresses and the standard MDF panels.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001070050438
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Bleaching of kraft pulp from Leucaena leucocephala grown in Tanzania (1995)
    Springer
    Holz als Roh- und Werkstoff 53 (1995), S. 389-391 
    Details
    ISSN: 1436-736X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Leucaena leucocephala mit Kappazahl von 28 wurde einer Sauerstoffbleiche unterzogen (SO2–O–C–EOP), wobei eine Sequenz eine Chlorstufe, die andere eine Chlordioxidstufe enthielt. Der Zellstoff konnte leicht zu einem Weißgrad von 80% ISO gebleicht werden. Die Bleiche verläuft einfacher als bei Eukalyptuszellstoffen. Aus Gründen des Umweltschutzes wird die Chlordioxidzwischenstufe gegenüber Chlor bevorzugt.
    Notes: Leucaena leucocephala with a kappa number of 28 was oxygen delignified and then bleached using two sequences, one employing chlorine and the other chlorine dioxide (clo2), followed by oxidative extraction with hydrogen peroxide. The pulp could be readily bleached to a brightness levelof 80% ISO using both sequences. When compared to Eucalyptus, bleachability was achieved more readily for the eucalyptus pulp. With the current environmental concern for pollution, a bleaching sequence utilizing chlorine dioxide isrecommended instead of a sequence employing chlorine as itwill significantly reduce effluent load in the waste treatment plant.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001070050114
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...